Individual provider · Type 1 NPI
William L. Matzner, MD, PhD
Internal Medicine Physician · Simi Valley, CA
Practice location
543 Country Club Dr # B125
Simi Valley, CA 93065-0637
Specialties and licenses
| Taxonomy | Code | License |
|---|---|---|
| Internal Medicine Physician Primary | 207R00000X | AO43053 (CA) |
Internal Medicine Physician: A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medi…
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About NPI 1306905716
William L. Matzner, MD, PhD's National Provider Identifier is 1306905716, issued on Dec 8, 2006. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in Simi Valley, CA. The record was last updated on Sep 27, 2026.